United States and the Russian invasion of Ukraine
The United States has supported Ukraine during the ongoing Russian invasion of Ukraine. The invasion, which began on February 24, 2022, was condemned by the Biden administration, which provided military, financial, and humanitarian aid to Ukraine, and imposed sanctions against Russia and Belarus. The Second Trump administration has proposed a peace deal and increasingly sought to distance itself from financially supporting Ukrainian resistance.
The United States has provided around half of all military aid to Ukraine. Between January 2022 to December 2024, according to the Kiel Institute, The US has spent $119.7 billion on activities related to the Russian invasion, and on other activities including supporting increased US–European presence, Ukrainian refugees in the US, and global food insecurity. According to the Council on Foreign Relations, by the end of September 2024 the United States had allocated $175 billion, related to the invasion of Russia, $106 billion of which went into direct aid to Ukraine, whilst $69 billion remained in the US economy to support US industries. There are several ways by which the US provides military and financial aid to Ukraine. Most of the military aid is old American weaponry and equipment from US reserve stockpiles; Presidential Drawdown Authority (PDA) allows the president to order the sending of this weaponry. American military contractors are then funded to make weapons to re-fill stockpiles. The Ukraine Security Assistance Initiative (USAI) funds the US Department of Defense to help train and advise the Ukrainian military, as well as to procure weaponry and equipment. The State Department's Foreign Military Financing (FMF) program helps allies like Ukraine buy weaponry and equipment from American manufacturers. Lastly, the US also sent some direct financial aid to the Ukrainian government through the United States Agency for International Development (USAID).
The Biden administration also imposed limits on the supply and use of some American weapons. For more than two years, it forbade Ukraine to fire American weapons, like the Army Tactical Missile System (ATACMS), at military targets inside Russia. From June 2024, it allowed Ukraine to strike inside Russia with US-supplied weapons, but only near the border in self-defense. On March 3, 2025, following disagreements during the 2025 Trump–Zelenskyy meeting, the second Trump administration paused all military aid to Ukraine. However, on March 11, 2025, U.S. military aid to Ukraine resumed after Ukraine agreed to a potential ceasefire.